Underdog Racing Development

URD 6 Injector Fuel/Timing Upgrade for TRD 5VZ-FE Supercharger	$1,099.00

Description

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URD 6 Injector Fuel/Timing Upgrade for TRD 5VZ-FE Supercharger

Performance Upgrade Kit for the Toyota 3.4 V6 equipped with the TRD Supercharger:

Increase Torque
Increase Horsepower
Eliminate High RPM Lean Out
Eliminate High Gear / Low RPM Ping

The supercharger performance upgrade kit from Underdog Racing Development is based on years of testing and components that are well proven and at the best value in the industry.

TRD did a good job developing their supercharger for the 3.4 V6, but there are two areas that were left for URD to improve on: High RPM Lean Out, and Boost Induced High Gear/Low RPM-Ping. URD's kit cures both issues on TRD Supercharged vehicles including all 3.4 engines from 1995 to 2004. However, we recommend URD's 7th injector kit on 1999 & newer vehicles.

The components contained in our complete kit are:

Six new 318cc Bosch fuel injectors modified to fit the 3.4 fuel rail and intake manifold
Six wire harness adapter plugs
Six 2 steps cooler performance spark plugs
Walbro 190 LPH pump
URD Performance Calibration Unit with or without ESC depending on year (preloaded with vehicle specific start-up program)
Restrictor T fitting and nylon vacuum line for connecting the URD PCU to the supercharger
Tuning software
Vehicle specific installation guide
Shrink tubing
URD vynal decal

For best results, earlier trucks with front O2 sensors should add a URD O2 Sensor Calibrator. Trucks with front air-fuel ratio sensors should add the AFR Calibrator. These gives you full control over the fuel mixture and eliminates the low boost power surging. Starting in approximately 1999, Toyota started using a newer type of sensor called an air/fuel ratio sensor and the O2 sensor signal conditioner is not compatible with it. Please email URD if you need help in determining which treuck type you own, or to inquire about what the best selection of components are for your vehicle. We can custom taylor a solution to meet your performance goal. (Below you have the option to select the O2 Sensor Calibrator or the AFR Calibrator, but please do select both)

Available Options:
Transmission:
Add AFR Calibrator:	Yes ( + $129.00 )
Add O2 Sensor Calibrator :	Yes ( + $149.00 )
Spark Plugs:

More Info

Mfg Info

Manufacturer Info
• Underdog Racing Development Homepage
• Other products

Reviews

by aaron amick	Date Added: Friday 25 September, 2009
If you plan on installing a S/C don't forget this kit; installed kit and S/C in about 12 hours including the FTC unit and no issues, no check engine lights. My buddy installed a S/C without any other upgrades and he's been suffering the usual issues of lean out and ping and not near as much power. This kit is a must have!.. Rating: [5 of 5 Stars]

by Brian Cox

Date Added: Tuesday 06 February, 2007

I installed this system on my 1998 4Runner SR5, and all I can say is the difference is night and day! The installation instructions are straightforward and clear; you can get up and tuning in a weekend with the help of Gadget's U-Tune guide. All of my ping has been eliminated, along with a significant increase in power accross the RPM range. There are no two ways about it: if you have a TRD Supercharged 3.4l V-6 Tacoma or 4Runner, you need this kit!..

Rating: [5 of 5 Stars]

by Douglas Profeta	Date Added: Tuesday 02 January, 2007
WOW! This is how the TRD supercharger should have come. Install instructions are very straight forward and thorough and the support from URD is top notch! The response time is incredible. If you own a TRD supercharger this kit is a must and URD is a great company to do business with!.. Rating: [5 of 5 Stars]

by Vincent Neuman

Date Added: Sunday 29 July, 2007

I added this to my 04 Supercharged 4x4. This is what the S/C was designed to do with this kit. Before I got the kit, you can feel the engine starving for fuel. After this kit, the truck jumps forward. Study up on tuning, it can be pretty tricky. Tuning the timing (to get rid of engine ping below 3000 RPM) is extremely easy, the fuel tuning (to maximize efficiency and power) not so easy, but doable...

Rating: [5 of 5 Stars]

Reviews

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This product was added to our catalog on Saturday 31 December, 2005.
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